Track or roadway.



LESLIE HAUKNEY, F ST. PAUL, MINNESOTA.

TRACK OR ROADWAY.

Specification of Lettersl Patent.

Patented Sept. 22, 1908.

Application ledvAugunt 9, 1907. ISerial No. 887,770.

To all whom it may concern: d

Be it known that I, LEsLIE S. HACKNEY, of

4 `St. Paul, Ramsey county, Minnesota, have invented certain new and useful Improvements in Tracks or Roadways, of which the following is a s ecification.

The o ject o my invention is to provide a roadway or track over which a vehicle such as an automobile may be driven at a uniform speed and without regard to the weather or t e condition of the soil in which the track is placed.

A further object is to provide a roadway of simple economical construction and one in which surface water will not collect and over which an automobile can be driven at comparatively high speed in perfect safety.v

The invention consists generally in various constructions and combinations, 'all as here- I out in the claims.

` surfaces 5 for the wheel treads,

` holes 8 in the rails through W ich any In the' accompanying drawings forming part of this specification, Figure 1' is a plan view of. a vehicle roadway embodying my invention. Fig. 2 is'fa transverse sectlonal view of the same. i

In the drawin Zrepresents the roadway which is preferab y raised above the level of e soil on each side of'the track ,to shed the surface water. 1

3 represents concrete foundations embedded in the gravel on each side of the roadway and made, preferably, of a mixture of broken rock and cement. 4, i

4 represents rails of concrete embedded in thefoundations 3 and having upper bearing and upwardly extending flanges 6` at their. inner ed es whose upper edges are luslifsubstantially with the raised roadway '2. These il es are provided with .inclined surfaces 7 which merge into the surfaces 5. VThe wheels rolli ing on the surfaces 5 lwill be guided by the inclmed surfaces- 7 and prevented from running olf the rails. At intervals I -plrefer to provide g rface water collecting thereon, may escape. l also w y turned ends 10 adapted to'enter the holes 8 and retain the r'ails-in arallel relation with one another. These ro s may be found particularly useful curves where the rails would be subjected to extreme lateral strain.

lparticularly pointedA A mid le portion above the level o may-provide cross or tie rods=9 having uptirely at the option of the builder of the roadwa 4 i Iy have indicated the rails .as composed of sections of concrete which may be made at a and laid in the concrete foundation' factory during the building of.tl1e roadway. A

This roadway, while adapted particularly for automobiles is capable of use withother vehicles ofall kinds` 1 claim as my inventiomv 1. A vehicle track comprising a roadway and a -wheel track laid therein and consisting of concrete rail sections, each section having an upwardly extending flane at its inner edge, the outer faces ofrsai( flanges being concave and the treadsurfaces .of said sections being also concave and merging into the Acurve of the corresponding surfaces of said flanges and forming therewith wheel treads which correspond substantially to the cross sectional curve of the wheel tires 'whereb the said tires will bear uniformly on the track and the wear thereon will be evenly dis-4 tributed.

2. A vehicle track comprising aroadway and a wheel .track laid therein and consisting of a series of rail vsections placed end to end, said sections having upwardly extending flanges at their inner edges and the roadway bei filled in between said flan es with lits il the to s of said flanges', and the outer ed es of sai sections being below. the level c the roadwa between said. sections and, above the roa way on each. side of the wheel track, and said sections having concave wheel surfaces, sub` stantially as described. 4

3.A vehicle track com rising a gravel roadway and a rubble oundation laid therein and a wheel track-laid in said rubble foundations, said'track being composed of sections placed end to end and having upwardly extending flanges on their inner edges, the roadwa being filled in between and having a-roun ed upfper surface pro'ecting abovesaid flanges an the wheel su aces of said sections being concave and correspondin substantially to the cross sectional curve o the tire tread, substantially as described.

4. A vehicle track comprising a roadway and at wheel track laid thereon and consisting ln witness whereof, I have hereunto set my 0 ('oncrete mil sections having lpwmdblf hand this 29th day of July 1907. extending [lan es at their inner e( lres, sai( w rail sect-ions lmfing holes tl'mrein at intervals l LESLIE S' HACKNF'Y' .5 und tie rods extending across the roadwa-Y f Witnesses: und having upwardly turner] ends tt-ingg RICHARD PAUL. within said holes j' J. B. BYINGTUN 

